From 85010585cde02d58753cfdcb59ae70c7dbe6e847 Mon Sep 17 00:00:00 2001 From: Samuel Pitoiset Date: Mon, 29 Oct 2018 11:37:02 +0100 Subject: [PATCH] radv: only enable gl_SampleMask if MSAA is enabled too Signed-off-by: Samuel Pitoiset Reviewed-by: Dave Airlie --- src/amd/vulkan/radv_pipeline.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) diff --git a/src/amd/vulkan/radv_pipeline.c b/src/amd/vulkan/radv_pipeline.c index 30459721692..1c258a1a936 100644 --- a/src/amd/vulkan/radv_pipeline.c +++ b/src/amd/vulkan/radv_pipeline.c @@ -3157,8 +3157,10 @@ radv_pipeline_generate_ps_inputs(struct radeon_cmdbuf *cs, static uint32_t radv_compute_db_shader_control(const struct radv_device *device, + const struct radv_pipeline *pipeline, const struct radv_shader_variant *ps) { + const struct radv_multisample_state *ms = &pipeline->graphics.ms; unsigned z_order; if (ps->info.fs.early_fragment_test || !ps->info.info.ps.writes_memory) z_order = V_02880C_EARLY_Z_THEN_LATE_Z; @@ -3168,10 +3170,16 @@ radv_compute_db_shader_control(const struct radv_device *device, bool disable_rbplus = device->physical_device->has_rbplus && !device->physical_device->rbplus_allowed; + /* Do not enable the gl_SampleMask fragment shader output if MSAA is + * disabled. + */ + bool mask_export_enable = ms->num_samples > 1 && + ps->info.info.ps.writes_sample_mask; + return S_02880C_Z_EXPORT_ENABLE(ps->info.info.ps.writes_z) | S_02880C_STENCIL_TEST_VAL_EXPORT_ENABLE(ps->info.info.ps.writes_stencil) | S_02880C_KILL_ENABLE(!!ps->info.fs.can_discard) | - S_02880C_MASK_EXPORT_ENABLE(ps->info.info.ps.writes_sample_mask) | + S_02880C_MASK_EXPORT_ENABLE(mask_export_enable) | S_02880C_Z_ORDER(z_order) | S_02880C_DEPTH_BEFORE_SHADER(ps->info.fs.early_fragment_test) | S_02880C_EXEC_ON_HIER_FAIL(ps->info.info.ps.writes_memory) | @@ -3197,7 +3205,8 @@ radv_pipeline_generate_fragment_shader(struct radeon_cmdbuf *cs, radeon_emit(cs, ps->rsrc2); radeon_set_context_reg(cs, R_02880C_DB_SHADER_CONTROL, - radv_compute_db_shader_control(pipeline->device, ps)); + radv_compute_db_shader_control(pipeline->device, + pipeline, ps)); radeon_set_context_reg(cs, R_0286CC_SPI_PS_INPUT_ENA, ps->config.spi_ps_input_ena);